20df13465b09ad3fabf707cdc3b370864ad0fe7e7ba550abb8b96cbd347283bf

Analysis

max time kernel
121s
max time network
123s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
01/09/2024, 07:41

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General

Target

cudatext/cudatext_shell64.dll
Size

1.1MB
MD5

8990a3692839c66d4c3d4196beccfc19
SHA1

563a54d812946601e2633abe7488b31f960b6845
SHA256

a23607739b05a20bcf5c79f0fb79659ae992d081e5dc75b15c63663af9c57925
SHA512

dc727f6556cae91572ecdd50fc0470a78502ee84c7a442e28f04befed99619da93e60242379f93c68a153d40f294d333a71e0e3bfeb4375355eb70effa292757
SSDEEP

12288:Tk4ULJUxWeEsA5Ry/3X4XyIrHyGddSvj4tNfQWWB2RqQN:A4U1UxGsA5Ry/HRjGdovj4tZQWWT

Score

7^/10

persistence privilege_escalation

Malware Config

Signatures

Event Triggered Execution: Component Object Model Hijacking 1 TTPs
Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.
persistence privilege_escalation

Component Object Model Hijacking
T1546.015

Modifies registry class 54 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{9F5022BF-4CDB-4F5A-B9BE-7971D91B954F}\1.0\FLAGS	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{2C7271F7-C5F5-4E97-BE65-93552CEB96D1}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{424D212F-385A-45BD-B844-12DE48079799}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\cudatext\\cudatext_shell64.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{2C7271F7-C5F5-4E97-BE65-93552CEB96D1}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CudaTextContextMenuHandler.CudaTextContextMenuHandler.1\CLSID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Drive\shellex\ContextMenuHandlers\CudaTextContextMenuHandler\ = "{424D212F-385A-45BD-B844-12DE48079799}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{9F5022BF-4CDB-4F5A-B9BE-7971D91B954F}\1.0\0\win64	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{9F5022BF-4CDB-4F5A-B9BE-7971D91B954F}\1.0\ = "CudaTextContextMenuHandler"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{9F5022BF-4CDB-4F5A-B9BE-7971D91B954F}\1.0\0	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{9F5022BF-4CDB-4F5A-B9BE-7971D91B954F}\1.0\HELPDIR	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{2C7271F7-C5F5-4E97-BE65-93552CEB96D1}\TypeLib\Version = "1.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{424D212F-385A-45BD-B844-12DE48079799}\VersionIndependentProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{424D212F-385A-45BD-B844-12DE48079799}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{424D212F-385A-45BD-B844-12DE48079799}\TypeLib\ = "{9F5022BF-4CDB-4F5A-B9BE-7971D91B954F}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{9F5022BF-4CDB-4F5A-B9BE-7971D91B954F}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{2C7271F7-C5F5-4E97-BE65-93552CEB96D1}\ = "ICudaTextContextMenuHandler"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Directory\Background\shellex\ContextMenuHandlers\CudaTextContextMenuHandler	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{9F5022BF-4CDB-4F5A-B9BE-7971D91B954F}\1.0\0\win64\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\cudatext\\cudatext_shell64.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{2C7271F7-C5F5-4E97-BE65-93552CEB96D1}\ = "ICudaTextContextMenuHandler"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{424D212F-385A-45BD-B844-12DE48079799}\InprocServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{424D212F-385A-45BD-B844-12DE48079799}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{424D212F-385A-45BD-B844-12DE48079799}\ProgID\ = "CudaTextContextMenuHandler.CudaTextContextMenuHandler.1"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{9F5022BF-4CDB-4F5A-B9BE-7971D91B954F}\1.0\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\cudatext"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{2C7271F7-C5F5-4E97-BE65-93552CEB96D1}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CudaTextContextMenuHandler.CudaTextContextMenuHandler\ = "CudaTextContextMenuHandler object"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CudaTextContextMenuHandler.CudaTextContextMenuHandler\CurVer	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\*\shellex\ContextMenuHandlers\CudaTextContextMenuHandler\ = "{424D212F-385A-45BD-B844-12DE48079799}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{9F5022BF-4CDB-4F5A-B9BE-7971D91B954F}\1.0\FLAGS\ = "0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{424D212F-385A-45BD-B844-12DE48079799}\VersionIndependentProgID\ = "CudaTextContextMenuHandler.CudaTextContextMenuHandler"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CudaTextContextMenuHandler.CudaTextContextMenuHandler\CLSID\ = "{424D212F-385A-45BD-B844-12DE48079799}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{2C7271F7-C5F5-4E97-BE65-93552CEB96D1}\TypeLib\ = "{9F5022BF-4CDB-4F5A-B9BE-7971D91B954F}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{9F5022BF-4CDB-4F5A-B9BE-7971D91B954F}\1.0	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{2C7271F7-C5F5-4E97-BE65-93552CEB96D1}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{2C7271F7-C5F5-4E97-BE65-93552CEB96D1}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{424D212F-385A-45BD-B844-12DE48079799}\ = "CudaTextContextMenuHandler object"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CudaTextContextMenuHandler.CudaTextContextMenuHandler	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CudaTextContextMenuHandler.CudaTextContextMenuHandler.1\ = "CudaTextContextMenuHandler object"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{2C7271F7-C5F5-4E97-BE65-93552CEB96D1}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{424D212F-385A-45BD-B844-12DE48079799}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CudaTextContextMenuHandler.CudaTextContextMenuHandler.1	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CudaTextContextMenuHandler.CudaTextContextMenuHandler.1\CLSID\ = "{424D212F-385A-45BD-B844-12DE48079799}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Directory\shellex\ContextMenuHandlers\CudaTextContextMenuHandler	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Directory\shellex\ContextMenuHandlers\CudaTextContextMenuHandler\ = "{424D212F-385A-45BD-B844-12DE48079799}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Directory\Background\shellex\ContextMenuHandlers\CudaTextContextMenuHandler\ = "{424D212F-385A-45BD-B844-12DE48079799}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{2C7271F7-C5F5-4E97-BE65-93552CEB96D1}\TypeLib\Version = "1.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{2C7271F7-C5F5-4E97-BE65-93552CEB96D1}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{2C7271F7-C5F5-4E97-BE65-93552CEB96D1}\TypeLib\ = "{9F5022BF-4CDB-4F5A-B9BE-7971D91B954F}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{424D212F-385A-45BD-B844-12DE48079799}\ProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CudaTextContextMenuHandler.CudaTextContextMenuHandler\CLSID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CudaTextContextMenuHandler.CudaTextContextMenuHandler\CurVer\ = "CudaTextContextMenuHandler.CudaTextContextMenuHandler.1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\*\shellex\ContextMenuHandlers\CudaTextContextMenuHandler	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Drive\shellex\ContextMenuHandlers\CudaTextContextMenuHandler	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{2C7271F7-C5F5-4E97-BE65-93552CEB96D1}\TypeLib	regsvr32.exe

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\cudatext\cudatext_shell64.dll
1⤵
- Modifies registry class
PID:2384

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Event Triggered Execution

T1546

Component Object Model Hijacking

T1546.015

Privilege Escalation

Event Triggered Execution

T1546

Component Object Model Hijacking

T1546.015

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Windows 7 deprecation

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